ABC Corporate Affairs have confimed more Who beyond the current list (which ends with the Dominators).

Unfortunatly, the titles were not available, but the number of episodes was.
These have been confirmed as a five part, a four part, six part and a 10 part story.
The following is the likely screening order this pattern corresponds to.

Key

Adventure titles follow tildes (~).
Note: most common usage.

Asterisk (*) denotes adventure not screening

Hash (#) denotes episode missing

At symbol (@) denotes "orphaned" (existing but part of incomplete adventure) episode, which will not screen.